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Finding the Fourth Proportional to 4,982.11, 7,472.71 and 1,860.63

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Solution

The fourth proportional to 4,982.11, 7,472.71 and 1,860.63 is: 2,790.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,982.11 : 7,472.71 = 1,860.63 : x
  2. Step 2: Convert to fraction form
    4,982.11/7,472.71 = 1,860.63/x
  3. Step 3: Cross multiply
    4,982.11x = 7,472.71 × 1,860.63
  4. Step 4: Simplify right side
    4,982.11x = 13,903,948.41
  5. Step 5: Solve for x
    x = 13,903,948.41/4,982.11
  6. Step 6: Final answer
    x = 2,790.78

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.